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4. The 2020PROPlus display will show “Zero air calibrated. Continue
calibration?” Press the “Next” key.
5. Enter the span gas concentration if the concentration displayed on the
2020PRO
Plus is different than the concentration of the span gas cylinder.
Press the “New” key and follow the display prompts. For further
information, see page 45 for numeric value, duration, time, and date entry.
If the span concentration matches the span gas cylinder concentration, press
the “Next” key.
6. Connect the 2020PRO
Plus to the sample bag containing the span gas. The
2020PRO
Plus will take 60-90 seconds to set the span set point. When
finished with the calibration, the 2020PRO
Plus will display “Calibration
complete”.
NOTE: While the Cal status is active, all alarms are deactivated.
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